Service difficulty report · Actuator · Boeing 737890

Difficulty date
March 24, 2017
Submitted
April 17, 2017
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
33,382 hours, 10,191 cycles
Engine
Cfmint CFM567B27
Part
Actuator
Condition
Out Of Tolerance
Location
Nr 1 Vsv
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FOUND THE NR 1 ENGINE WITH LONG TIME FAULT 75-20391. THE VSV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 VSV ACTUATOR.